1 #Makefile for YAFFS2 as a module
3 # NB this is not yet suitable for putting into the kernel tree.
4 # YAFFS: Yet another FFS. A NAND-flash specific file system.
6 # Copyright (C) 2002 Aleph One Ltd.
7 # for Toby Churchill Ltd and Brightstar Engineering
9 # Created by Charles Manning <charles@aleph1.co.uk>
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License version 2 as
13 # published by the Free Software Foundation.
15 # $Id: Makefile,v 1.5 2005-08-01 20:52:35 luc Exp $
18 ## Change or override KERNELDIR to your kernel
19 ## comment out USE_xxxx if you don't want these features.
21 KERNELDIR = /usr/src/kernels/2.6.11-1.1369_FC4-i686
23 ## Change if you are using a cross-compiler
30 # Comment out the stuff you don't want.
34 # This adds the yaffs file system support for working with a
35 # a 512 byte / page NAND mtd.
37 USE_MTD = -DCONFIG_YAFFS_YAFFS1
40 # This adds the yaffs2 file system support for working with a
41 # 2048 or larger byte / page NAND mtd.
43 USE_MTD_2 = -DCONFIG_YAFFS_YAFFS2
46 # CONFIG_YAFFS_RAM_ENABLED.
47 # This adds the yaffsram file system support. Nice for testing on x86, but uses 2MB of RAM.
48 # Don't enable for NAND-based targets.
50 # USE_RAM_FOR_TEST = -DCONFIG_YAFFS_RAM_ENABLED
52 # CONFIG_YAFFS2_RAM_ENABLED.
53 # This adds the yaffs2ram file system support. Nice for testing on x86, but uses 2MB of RAM.
54 # Don't enable for NAND-based targets.
56 # USE_RAM_FOR_TEST_2 = -DCONFIG_YAFFS2_RAM_ENABLED
58 # CONFIG_YAFFS_USE_NANDECC
59 # This enables the ECC functions of the generic MTD-NAND driver.
60 # This will not work if you are using the old mtd.
62 # NB UseNANDECC does not work at present with yaffsram.
64 USE_NANDECC = -DCONFIG_YAFFS_USE_NANDECC
66 # CONFIG_YAFFS_ECC_WRONG_ORDER
67 # This makes yaffs_ecc.c use the same ecc byte order as
68 # Steven Hill's nand_ecc.c. If not set, then you get the
69 # same ecc byte order as SmartMedia.
71 #USE_WRONGECC = -DCONFIG_YAFFS_ECC_WRONG_ORDER
73 # CONFIG_YAFFS_USE_HEADER_FILE_SIZE
74 # When the flash is scanned, two file sizes are constructed:
75 # * The size taken from the object header for the file.
76 # * The size figured out by scanning the data chunks.
77 # If this option is enabled, then the object header size is used, otherwise the scanned size is used.
78 # Suggest leaving this disabled.
80 #USE_HEADER_FILE_SIZE = -DCONFIG_YAFFS_USE_HEADER_FILE_SIZE
82 #CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
83 # Enabling this turns off the test that chunks are erased in flash before writing to them.
84 # this is safe, since the write verification will fail.
85 # Suggest enabling the test (ie. keep the following line commented) during development to help debug things.
87 #IGNORE_CHUNK_ERASED = -DCONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
89 #CONFIG_YAFFS_DISABLE_WRITE_VERIFY
90 # I am severely reluctant to provide this config. Disabling the verification is not a good thing to do
91 # since NAND writes can fail silently.
92 # Disabling the write verification will cause your teeth to rot, rats to eat your corn and give you split ends.
93 # You have been warned. ie. Don't uncomment the following line.
95 #IGNORE_WRITE_VERIFY = -DCONFIG_YAFFS_DISBLE_WRITE_VERIFY
97 #CONFIG_YAFFS_SHORT_NAMES_IN_RAM
98 # If this config is set, then short names are stored with the yaffs_Object
99 # This costs an extra 16 bytes of RAM per object, but makes look-ups faster.
101 ENABLE_SHORT_NAMES_IN_RAM = -DCONFIG_SHORT_NAMES_IN_RAM
103 # End of configuration options.
105 WIERD_COMPILE_CONFIGS = -DNR_IRQS=1 -DNR_IRQ_VECTORS=1
107 YAFFS_CONFIGS = $(WIERD_COMPILE_CONFIGS) \
108 $(USE_RAM_FOR_TEST) $(USE_MTD) $(USE_RAM_FOR_TEST_2) $(USE_MTD_2)\
109 $(USE_HEADER_FILE_SIZE) $(IGNORE_CHUNK_ERASED) $(IGNORE_WRITE_VERIFY) \
110 $(ENABLE_SHORT_NAMES_IN_RAM) $(USE_NANDECC) $(USE_WRONGECC)
113 YAFFS2_CONFIGS = $(YAFFS_CONFIGS)
115 CFLAGS = -D__KERNEL__ -DMODULE $(YAFFS2_CONFIGS) -I$(KERNELDIR)/include -O2 -g -Wall
118 OBJS = yaffs_fs.o yaffs_guts.o yaffs_ramem.o yaffs_mtdif.o yaffs_ecc.o yaffs_tagscompat.o yaffs_ramem2k.o yaffs_packedtags2.o yaffs_mtdif2.o yaffs_tagsvalidity.o
123 $(OBJS): %.o: %.c Makefile
124 $(CC) -c $(CFLAGS) $< -o $@
127 $(LD) -r $(OBJS) -o $@